Roller-skate



(No Model.)

S. WINSLOW.

Roller Skate.

No. 240,215. 'Patented-April12,188L

UNITED STATES PATENT OFFICE.

SAMUEL WINSLOW, OF VVOROESTER, MASSACHUSETTS.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 240,215, dated April 12', 1881, Application tiled March 1S, 1881. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL WiNsLow, a citizen of the United States, residing at Worcester, in the county of W'orcester and State of Massachusetts, have invented new and useful Improvements in Roller-Skates, of which the following is a specification.

This invention has reference to that class of roller-skates in which the foot-plate can be tipped or inclined by the motion of the foot ot' the wearer, so as to cause the axles of the wheels or rollers to change from a parallel position to an inclined position toward each other, and thus cause the skate to run in curved lines.

The object ofthe present invention is to materially improve the construction of the skate forming the subject-matter of Letters Patent No.229,011, granted to me on the 22d day of June, 1880; but the novel devices now described can also be applied to roller-skates of every known description.

The invention consists in the provision of an oil chamber or box, whichforms part of or is carried by arms looselyttcd in bearings on the foot plate or stand, so as to form a hinge or pivot connection between said foot-plate and the wheels having their axles projecting from the oil box or chamber. The axles of the wheels are connected with the oil box or chamber by a screw and socket or other form of joint, and they are made with axial bores having one or more openings leading therefrom for conveying oil or lubricating material to the bearingsurface of the axles.

In the drawings, Figure lis a side elevation of a roller-skate embodying my improvements. Fig. 2 is a longitudinal section taken through one of the hangers and the oil-box and rollerframe mounted thereon. Fig. 3 is a vertical section taken through a pair of rollers, their axles, and the oil-box. Fig. 4 is a detached view of one of the roller axles or spindles. Fig. is a bottom view of the rear hanger and the screw for adjusting the sole-clamps journaled thereon. Y

The foot-plate, A, shown in the present instance is made of metal, and has the laterallyadjustable sole-clarnps a and the heel-plate l used in ice or runner skates. The sole-clamps are located at the front and rear of the footplate, and are adjusted through the medium of the transverse screw-shafts cd. These screwshafts have right and left hand screw-threads cut thereon, and are fitted in central bearings. The screw-shaft c ofb the front pair of soleclamps is tted in a slotted or forked bearing projecting from the bottom of the sole-plate, and the rear screw-shaft, d, is supported by the hanger B of the foot-plate. This hanger, together with a similar one, C, located near the front of the foot-plate, docs not differ in construction or forni from corresponding devices found in my Patent No. 229,011. The hangers B O are likewise provided with the obliquelyarranged top and bottom eyes D, which receive the pin tles or pivots of the roller frame or yoke.

In the present instance' the roller-frame is composed of a body portion, E, which is made hollow, so as to serve as an oil chamber or reser- 'voir, and is provided with, front and rear arms,

E', having upturned ends or ears F. One of these ears has the pintle or gudgeonfformed therewith, which enters the top eye, D,.on the hanger, and the other ear is made tubular for the passage of the screw-pintle or coupling-pin Gr. This screw serves to connect the roller-frame to the hanger in connection with the other pintle, f, and it also bears against an india-rubber or elastic cushion, H, interposed between the hanger and roller-frame. The hollow or chambered roller-frame, or the body portion of said frame, serves as an oil chamber or reservoir for lubricating material, as previously stated, and each frame has screw-threaded sockets or lateral extensions I, which receive the screwthreaded ends of the roller axles or spindles J. These axles are provided with outer heads, j, between which and the shoulders of the extensions I the ordinary rollers or wheels K are held, so as to turn on said axles. The axles are made tubular, or provided with an axial bore, L, which has one or more openings, M, leading therefrom to the outer or bearing surface of the axle.

It will be obvious that the oil contained in the reservoir or chamber follows into the bore of the axle, and from thence passes to the bearing-surface through the openings M. In this manner the automatic lubrication of the rollers is insured, so as yto cause the same to run easily and smoothly at all times.

,The oil-chamber is provided with a fillingoritice closed bya suitable screw plug or cap, N.

IOO

In the skate previously patented to me the hangers are subject to longitudinal strains, Which has a tendency to throw the parts out of their proper positions. I overcome this defeet by connecting the hangers through the medium of a longitudinal tie-rod or brace, O. The ends of this rod are provided with screwthreads ruiming in reverse directions, and litted into screw-sockets in the hangers. This mode of connection is preferred; but the rod may be secured by riveting its ends. The function of the rod is to equalize the strains to which the hangers and their appendages are subject7 and otherwise firmly brace the various parts.

What I claim is- 1. In a rollerskate7 the combination of a roller frame or support having a central oil- 

